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  #1  
Old 02-04-2010, 06:46 AM
Hoosier
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Default RPM Fluctuation

I have a 04 Ram 1500 Quad. When cruising, the RPMs will go from 1800 to 2000 and maybe then to 2200 before going back to where it needs to be at 1800. Then it starts it all over again. Very annoying. My sons 03 did the same thing - his answer was to sell his truck. I don't give up that easy. After researching this forum, it looks like it "may" be the TPS. Is this a good place to start? I just had tranny flushed, radiator flushed and engine cleaned back in OCT when this first started, thinking tranny needed to be serviced (at Dodge dealer). It may go days/weeks without doing it, and then it will do it for a day or so and then back to normal. Any suggestions?
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Old 02-04-2010, 08:19 AM
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Which engine do you have and are there any codes in the PCM?
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Old 02-04-2010, 10:14 AM
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4.7. I told the dealer about it when I took it in back in Oct. They didn't say anything about any codes, just serviced the trans. I didn't do it when I left, so I thought everything was fine.
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Old 02-04-2010, 12:46 PM
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I had a Nissan once that did this. You could leave it in nuetral and rev it up, and when it hit about 2k rpm's, it would bounce back and forth b/w 1500-2000 rpm. It was the TPS. Being a five-speed, you can imagine how it was pulling out. lol.
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Old 02-04-2010, 02:41 PM
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I'm hoping mine will pop out on it's own as soon as I open hood. :-)
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